/// <summary>
        /// Update an eCommerce Cart with one product
        /// </summary>
        static private void UpdateECommerceCartWithOneProductSKUOnly()
        {
            var piwikTracker = new PiwikTracker(SiteId, PiwikBaseUrl);

            piwikTracker.SetUserAgent(UA);

            piwikTracker.AddEcommerceItem(
                "SKU VERY nice indeed"
                );

            var response = piwikTracker.DoTrackEcommerceCartUpdate(1000.2);

            DisplayDebugInfo(response);
        }
        /// <summary>
        /// Update an eCommerce Cart with one product
        /// </summary>
        static private void UpdateECommerceCartWithOneProduct()
        {
            var piwikTracker = new PiwikTracker(SiteId, PiwikBaseUrl);

            piwikTracker.SetUserAgent(UA);

            piwikTracker.AddEcommerceItem(
                "SKU VERY nice indeed",
                "PRODUCT name", new List <string> {
                "Clothes", "Electronics & Cameras"
            },
                500.2,
                2
                );

            var response = piwikTracker.DoTrackEcommerceCartUpdate(1000.4);

            DisplayDebugInfo(response);
        }
        /// <summary>
        /// Update an eCommerce Cart with multiple products
        /// </summary>
        static private void UpdateECommerceCartWithMultipleProducts()
        {
            var piwikTracker = new PiwikTracker(SiteId, PiwikBaseUrl);

            piwikTracker.SetUserAgent(UA);

            piwikTracker.AddEcommerceItem(
                "SKU VERY nice indeed",
                "PRODUCT name",
                new List <string> {
                "Electronics & Cameras"
            },
                500
                );

            // This one overrides the previous addition
            piwikTracker.AddEcommerceItem(
                "SKU VERY nice indeed",
                "PRODUCT name",
                new List <string> {
                "Electronics & Cameras"
            },
                500,
                2
                );

            piwikTracker.AddEcommerceItem(
                "SKU NEW",
                "BLABLA",
                null,
                5000000,
                20
                );

            var response = piwikTracker.DoTrackEcommerceCartUpdate(1000);

            DisplayDebugInfo(response);
        }